linux-kernel - [PATCH 1/4] Input: sparse-keymap - send sync event for KE_SW/KW

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Date:   Fri, 3 Nov 2017 20:03:26 +0100
From:   Stefan Brüns <stefan.bruens@...h-aachen.de>
To:     <platform-driver-x86@...r.kernel.org>
CC:     Stefan Brüns <stefan.bruens@...h-aachen.de>,
        "Dmitry Torokhov" <dmitry.torokhov@...il.com>,
        <linux-kernel@...r.kernel.org>, <linux-input@...r.kernel.org>
Subject: [PATCH 1/4] Input: sparse-keymap - send sync event for KE_SW/KW_VSW

Sync events are sent by sparse_keymap_report_entry for normal KEY_*
events, and are generated by several drivers after generating
SW_* events, so sparse_keymap_report_entry should do the same.

Without the sync, events are accumulated in the kernel.

Currently, no driver uses sparse-keymap for SW_* events, but
it is required for the intel-vbtn platform driver to generate
SW_TABLET_MODE events.

Signed-off-by: Stefan Brüns <stefan.bruens@...h-aachen.de>
---

 drivers/input/sparse-keymap.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/input/sparse-keymap.c b/drivers/input/sparse-keymap.c
index bb0349fa64bc..fd03e55768c9 100644
--- a/drivers/input/sparse-keymap.c
+++ b/drivers/input/sparse-keymap.c
@@ -255,6 +255,7 @@ void sparse_keymap_report_entry(struct input_dev *dev, const struct key_entry *k
 
 	case KE_VSW:
 		input_report_switch(dev, ke->sw.code, value);
+		input_sync(dev);
 		break;
 	}
 }
-- 
2.14.3